Adjustable lock



FIG. 1 is a front, left, top perspective view of a first embodiment of an adjustable lock in a closed configuration showing our new design;

FIG. 2 is a front, right, top perspective view thereof;

FIG. 3 is a rear, right, bottom perspective view thereof;

FIG. 4 is a rear, left, bottom perspective view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a cross-sectional view thereof as indicated in FIG. 5;

FIG. 12 is a front, left, top perspective view of the adjustable lock of FIG. 1 in an open configuration;

FIG. 13 is a front, right, top perspective view thereof;

FIG. 14 is a rear, right, bottom perspective view thereof;

FIG. 15 is a rear, left, bottom perspective view thereof;

FIG. 16 is a front elevation view thereof;

FIG. 17 is a rear elevation view thereof;

FIG. 18 is a right side view thereof;

FIG. 19 is a left side view thereof;

FIG. 20 is a top plan view thereof;

FIG. 21 is a bottom plan view thereof;

FIG. 22 is a cross-sectional view thereof as indicated in FIG. 16;

FIG. 23 is a front, left, top perspective view of the adjustable lock of FIG. 1 with a cylindrical rail member inserted therein, the cylindrical rail member forming no part of the claimed design; and,

FIG. 24 is a front, left, top perspective view of the adjustable lock of FIG. 12 with a cylindrical rail member inserted therein, the cylindrical rail member forming no part of the claimed design.

The broken lines shown in the drawings depict portions of the adjustable lock and the rail member that form no part of the claimed design. 

CLAIM The ornamental design for an adjustable lock, as shown and described. 